American light suspension device

Abstract

The utility model discloses an American light suspension device, which relates to the technical field of light suspensions, and comprises an axle, two special-shaped welding guide arms and round holes formed in one sides of the special-shaped welding guide arms, and one end of the axle penetrates through the round holes; one side of the top end of the special-shaped welding guide arm is fixedly connected with an air spring and an air bag upper cover plate fixedly connected to the top end of the air spring; a guide arm support, a rubber damping sleeve arranged in the guide arm support and a damper arranged between the guide arm support and the axle are arranged on one side of the special-shaped welding guide arm. According to the American type light suspension device, the special-shaped welding guide arm and the guide arm support connecting end are narrowed by 45% compared with a traditional American type suspension, and therefore the weight of the guide arm support, the weight of the welding guide arm and the weight of the rubber damping sleeve can be reduced by 20%, 20% and 30% respectively; u-shaped bolts, nuts, assembling of the U-shaped bolts and the nuts and regular torque inspection and maintenance in the later use process are omitted in a welding mode.

Description

Technical Field

[0001] The utility model relates to the technical field of light suspension, in particular to an American light suspension device. Background Art

[0002] The semi-trailer suspension is located between the frame or body and the axle or wheel. It transmits the traction of the tractor through the frame, and at the same time transmits various forces and moments acting between the wheel and the frame or body. It is one of the key components of the semi-trailer. The axle and the spring plate are fixed through the leaf spring seat and the bracket, and fastened together with U-shaped bolts, and then the bracket and the pin seats on the front bracket, the front middle bracket and the rear middle bracket are connected with long and short tie rods to form a complete suspension system.

[0003] After searching in the public (announcement) number: CN206718914U, a semi-trailer light suspension is disclosed, which belongs to the technical field of semi-trailers. The semi-trailer light suspension includes a front bracket, a middle bracket assembly, a rear bracket, a leaf spring, a U-shaped bolt, a leaf spring seat, a bracket, and a first tie rod. It is characterized in that the middle bracket assembly includes a front middle bracket and a rear middle bracket, and a balance arm is respectively arranged in the front middle bracket and the rear middle bracket. The upper sides of the two ends of the balance arm are respectively clamped with the leaf spring, and a downward convex connecting part is arranged on the lower side of one end of the balance arm. A second tie rod is arranged on one side of the connecting part and the upper part of the bracket. The second tie rod is equal to the first tie rod in length, and the angles between the second tie rod, the first tie rod and the horizontal plane are equal. The beneficial effect of the utility model is that the semi-trailer light suspension has a simple and reasonable structure, high safety performance, meets the requirements of lightweight, and reduces manufacturing and inventory costs, and is suitable for popularization and use.

[0004] Although the above-mentioned scheme has a simple and reasonable structure, high safety performance and meets the requirements of lightweight, it can be further optimized to achieve better results while being lighter, thereby increasing the service life of the suspension device. Utility Model Content

[0005] The main purpose of the utility model is to provide an American-style lightweight suspension device to solve the problem of further optimization, lighter weight and better effect, thereby increasing the service life of the suspension device.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] An American light suspension device comprises an axle and two special-shaped welded guide arms, and also comprises a circular hole opened inside one side of the special-shaped welded guide arm, and one end of the axle passes through the circular hole;

[0008] An air spring is fixedly connected to one side of the top end of the special-shaped welding guide arm, and an airbag upper cover plate is fixedly connected to the top end of the air spring;

[0009] A guide arm bracket, a rubber shock-absorbing sleeve arranged inside the guide arm bracket, and a shock absorber arranged between the guide arm bracket and the axle are arranged on one side of the special-shaped welded guide arm.

[0010] Preferably, the inner sides of the two circular holes are fixedly connected with shaft sleeves, and the inner sides of the shaft sleeves are welded to the axle.

[0011] Preferably, a bolt and a nut threadedly connected to one end of the bolt are provided in the middle of the rubber shock-absorbing sleeve.

[0012] Preferably, a sleeve is provided inside the special-shaped welding guide arm, and the rubber shock-absorbing sleeve is press-fitted inside the sleeve.

[0013] Preferably, connecting frames are provided on opposite sides of the axle and the guide arm bracket, and a plurality of locking bolts are provided on both sides of the shock absorber, and the locking bolts are respectively threadedly connected to the corresponding connecting frames.

[0014] Preferably, the two guide arm brackets and the special-shaped welded guide arms are symmetrically arranged along the central axis of the axle.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] 1. In the utility model, by using a special-shaped welded guide arm, the connection end with the guide arm bracket is narrowed by 45% compared with the traditional American suspension, so that the guide arm bracket, the welded guide arm, and the rubber shock-absorbing sleeve can be reduced by 20%, 20%, and 30% respectively; the connection method between the axle and the guide arm is changed from U-bolt and nut fixation to welding, the axle is first circumferentially welded with the oblong hole opened on the shaft sleeve, and after welding, the guide arm is sleeved on the shaft sleeve, and circumferential welding is performed on the joints on both sides of the guide arm and the shaft sleeve. This connection method eliminates the need for U-bolts and nuts and their assembly, and regular torque inspection and maintenance during later use, thereby increasing the service life of the suspension. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0018] Figure 2 It is a cross-sectional view of the utility model;

[0019] Figure 3 It is a cross-sectional view from another angle in the utility model;

[0020] Figure 4 It is a cross-sectional view of the special-shaped welded guide arm and the guide arm bracket in the utility model;

[0021] Figure 5 For this utility model Figure 4Cross-section of the middle AA;

[0022] Figure 6 It is a cross-sectional view of the special-shaped welded guide arm and the upper cover plate of the airbag in the utility model;

[0023] Figure 7 It is a cross-sectional view of the special-shaped welded guide arm and the rubber shock-absorbing sleeve in the utility model;

[0024] Figure 8 For this utility model Figure 7 Cross-section of the middle BB;

[0025] Fig. 9 It is a cross-sectional view of the special-shaped welding guide arm in the utility model.

[0026] In the figure:

[0027] 1. Guide arm bracket; 2. Airbag upper cover; 3. Special-shaped welded guide arm; 3-1. Rubber shock-absorbing sleeve; 3-2. Bolt; 3-3. Nut; 4. Shock absorber; 5. Axle; 5-1. Bushing; 6. Air spring. DETAILED DESCRIPTION

[0028] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods. Example

[0029] like Figure 1-9 As shown, an American light suspension device includes an axle 5 and two special-shaped welded guide arms 3, and also includes a circular hole opened inside one side of the special-shaped welded guide arm 3, and one end of the axle 5 passes through the circular hole;

[0030] An air spring 6 is fixedly connected to one side of the top end of the special-shaped welding guide arm 3, and an airbag upper cover plate 2 is fixedly connected to the top end of the air spring 6;

[0031] A guide arm bracket 1 , a rubber shock-absorbing sleeve 3 - 1 arranged inside the guide arm bracket 1 , and a shock absorber 4 arranged between the guide arm bracket 1 and the axle 5 are arranged on one side of the special-shaped welded guide arm 3 .

[0032] The inner sides of the two circular holes are fixedly connected with shaft sleeves 5 - 1 , and the inner sides of the shaft sleeves 5 - 1 are welded to the axle 5 .

[0033] A bolt 3-2 and a nut 3-3 threadedly connected to one end of the bolt 3-2 are provided in the middle of the rubber shock-absorbing sleeve 3-1.

[0034] A sleeve is arranged inside the special-shaped welding guide arm 3, and a rubber shock-absorbing sleeve 3-1 is press-fitted inside the sleeve.

[0035] A connecting frame is provided on opposite sides of the axle 5 and the guide arm bracket 1 , and a plurality of locking bolts are provided on both sides of the shock absorber 4 , and the locking bolts are respectively threadedly connected to the corresponding connecting frames.

[0036] The two guide arm brackets 1 and the special-shaped welded guide arms 3 are symmetrically arranged along the central axis of the axle 5 .

[0037] By using the special-shaped welded guide arm 3, the connection end between the guide arm bracket 1 and the special-shaped welded guide arm 3 is narrowed by 45% compared with the traditional American suspension, so that the guide arm bracket 1, the special-shaped welded guide arm 3 and the rubber shock-absorbing sleeve 3-1 can be reduced by 20%, 20% and 30% respectively; the connection method between the axle 5 and the special-shaped welded guide arm 3 is changed from U-shaped bolt and nut fixing to welding, the axle 5 is first circumferentially welded with the oblong hole opened on the sleeve 5-1, and after welding, the special-shaped welded guide arm 3 is sleeved on the sleeve 5-1, and circumferential welding is performed on the joints on both sides of the special-shaped welded guide arm 3 and the sleeve 5-1. This connection method eliminates the need for U-shaped bolts and nuts 3-3 and their assembly, and regular torque inspection and maintenance during later use, thereby increasing the service life of the suspension. Example

[0038] like Figure 1-9 As shown, an American light suspension device includes an axle 5 and two special-shaped welded guide arms 3, and also includes a circular hole opened inside one side of the special-shaped welded guide arm 3, and one end of the axle 5 passes through the circular hole;

[0039] An air spring 6 is fixedly connected to one side of the top end of the special-shaped welding guide arm 3, and an airbag upper cover plate 2 is fixedly connected to the top end of the air spring 6;

[0040] A guide arm bracket 1 , a rubber shock-absorbing sleeve 3 - 1 arranged inside the guide arm bracket 1 , and a shock absorber 4 arranged between the guide arm bracket 1 and the axle 5 are arranged on one side of the special-shaped welded guide arm 3 .

[0041] The inner sides of the two circular holes are fixedly connected with shaft sleeves 5 - 1 , and the inner sides of the shaft sleeves 5 - 1 are welded to the axle 5 .

[0042] A bolt 3-2 and a nut 3-3 threadedly connected to one end of the bolt 3-2 are provided in the middle of the rubber shock-absorbing sleeve 3-1.

[0043] A sleeve is arranged inside the special-shaped welding guide arm 3, and a rubber shock-absorbing sleeve 3-1 is press-fitted inside the sleeve.

[0044] This improves the installation stability of the rubber shock-absorbing sleeve 3-1

[0045] A connecting frame is provided on opposite sides of the axle 5 and the guide arm bracket 1 , and a plurality of locking bolts are provided on both sides of the shock absorber 4 , and the locking bolts are respectively threadedly connected to the corresponding connecting frames.

[0046] The working stability of the shock absorber 4 is effectively guaranteed, and at the same time, the shock absorber 4 is ensured not to fall during the working process, thereby increasing the service life of the shock absorber 4;

[0047] The two guide arm brackets 1 and the special-shaped welded guide arms 3 are symmetrically arranged along the central axis of the axle 5 .

[0048] During the driving process of the vehicle, the rubber shock-absorbing sleeve 3 - 1 , the shock absorber 4 , and the air spring 6 work together to achieve the bouncing of the axle 5 and its shock absorption.

[0049] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. An American light suspension device, comprising an axle (5) and two special-shaped welded guide arms (3), characterized in that: It also includes a circular hole formed inside one side of the special-shaped welding guide arm (3), and one end of the axle (5) passes through the circular hole; An air spring (6) is fixedly connected to one side of the top end of the special-shaped welding guide arm (3), and an air bag upper cover plate (2) is fixedly connected to the top end of the air spring (6); A guide arm bracket (1), a rubber shock-absorbing sleeve (3-1) arranged inside the guide arm bracket (1), and a shock absorber (4) arranged between the guide arm bracket (1) and the axle (5) are arranged on one side of the special-shaped welded guide arm (3).

2. An American light suspension device according to claim 1, characterized in that: The inner sides of the two circular holes are fixedly connected with shaft sleeves (5-1), and the inner sides of the shaft sleeves (5-1) are welded to the axle (5).

3. An American light suspension device according to claim 2, characterized in that: A bolt (3-2) and a nut (3-3) threadedly connected to one end of the bolt (3-2) are provided in the middle of the rubber shock-absorbing sleeve (3-1).

4. An American light suspension device according to claim 3, characterized in that: A sleeve is provided inside the special-shaped welding guide arm (3), and the rubber shock-absorbing sleeve (3-1) is press-fitted inside the sleeve.

5. An American light suspension device according to claim 4, characterized in that: The axle (5) and the guide arm bracket (1) are both provided with connection frames on opposite sides, and a plurality of locking bolts are provided on both sides of the shock absorber (4), and the locking bolts are respectively threadedly connected to the corresponding connection frames.

6. An American light suspension device according to claim 5, characterized in that: The two guide arm brackets (1) and the special-shaped welded guide arms (3) are symmetrically arranged along the central axis of the axle (5).

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